Home / 20,221,128,055.70-30,319,598,848.35-10,425,607,543.70

Finding the Fourth Proportional to 20,221,128,055.70, 30,319,598,848.35 and 10,425,607,543.70

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Solution

The fourth proportional to 20,221,128,055.70, 30,319,598,848.35 and 10,425,607,543.70 is: 15,632,176,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,128,055.70 : 30,319,598,848.35 = 10,425,607,543.70 : x
  2. Step 2: Convert to fraction form
    20,221,128,055.70/30,319,598,848.35 = 10,425,607,543.70/x
  3. Step 3: Cross multiply
    20,221,128,055.70x = 30,319,598,848.35 × 10,425,607,543.70
  4. Step 4: Simplify right side
    20,221,128,055.70x = 316,100,238,475,315,576,832
  5. Step 5: Solve for x
    x = 316,100,238,475,315,576,832/20,221,128,055.70
  6. Step 6: Final answer
    x = 15,632,176,286.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.